The body mass index of an individual is one measure that is used to judge whether an individual is overweight or not. A BMI between 20 and 25 indicates that one is normal weight.  In a survey of 750 men and 750 women the Gallup organization found that 204 men and 270 women were normal weight. Test at a 10% significant level whether there is a difference in the proportion of men and women who are normal weight. Use the p value method

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.